What is quality content ?

People often refer to "good content".
Every one says quality content is king of success.
So,What is "good content"?

Can we start creating "good content" or  is there any tutorial?

So Let's see this in different ways :

1.In my eyes, good content needs to be interesting, original, informative and as complete as possible.

2.Writing your own is always best if you have the knowledge, otherwise hiring a ghost-writer or using an article writing service is a 2nd alternative.

3.Educate/entertain/inspire/whatever people in a way that ten million other Web sites don't already do. Proof read your stuff. If you're trying to educate, avoid useless lines.Really get into the nuts and bolts of things.

4.It depends on the person who receives the content.
If the person is interested in "Funny video" then good content means lots of real funny video.

5.If the person needs an answer on "where is the Banglore" the good content will tell that it is a city in karnataka state of south india and may be show a map & a couple sentences on what that city is all about.
Hence, good content would be that what answers the persons question or demand in simpler and smarter way.

I think the different people get it by different way. so please coment the way of explanation you like or any you know.